A tube straightening and cutting device for a chemical supply liquid system and a control method

Abstract

The present application relates to a kind of tube straightening cutting device and control method for chemical supply liquid system, the tube straightening cutting device includes heating straightening mechanism and tube detection mechanism.The heating straightening mechanism has heating assembly, straightening component and straightening adjusting component.The straightening component includes multiple first straightening pressure roller fixedly arranged and multiple second straightening pressure roller adjustable along the radial direction, the multiple second straightening pressure roller is mismatched with multiple first straightening pressure roller to define the straightening gap of different sizes to be straightened to the tube of different pipe diameter.The tube detection mechanism is provided with scanning camera, for detecting whether the tube is bent and determining the bending position and bending degree of the tube to judge whether the tube is straightened qualified.The heating straightening mechanism is set to control the position height of corresponding second straightening pressure roller along the radial direction automatically adjusted according to the bending position and bending degree of the tube detected by scanning camera to improve the straightness of the tube.

Description

Technical Field

[0001] This invention relates to the field of pipe straightening technology, specifically to a pipe straightening and cutting device and control method for a chemical liquid supply system. Background Technology

[0002] Chemical supply systems typically use PFA hoses to transport chemicals. However, during the manufacturing process, PFA hoses may experience bending or twisting deformations due to material and manufacturing processes. These deformations can affect the normal use and connection effectiveness of the pipes, and may even lead to pipe rupture. Furthermore, to facilitate the transport of chemicals and reduce resistance, straight pipes are often used in chemical supply systems. Therefore, it is necessary to straighten and cut the hose material to eliminate internal and external stresses and ensure that its shape and dimensions meet requirements.

[0003] Pipe straightening typically requires heating to improve the straightening effect. The straightening mechanism usually uses two rows of parallel, staggered straightening rollers, with each row of rollers aligned horizontally. However, due to slight deviations in the installation position of the straightening rollers, imperfections in the contact surface between the rollers and the pipe, and uneven heating during straightening, the straightened and cut pipe may still exhibit bends in some locations, failing to meet the required standards. Therefore, it is necessary to adjust the radial position of the straightening rollers corresponding to the bends in the pipe to adjust the straightening force at those locations, eliminating the bends and improving the straightness of the pipe.

[0004] However, since the straightening rollers of the straightening mechanism are mostly fixed, adjusting them requires disassembling and reassembling the entire machine, which is quite troublesome. Even if the straightening rollers are adjustable, since the straightening and cutting of pipes is done as a whole, if bending is found in the pipes being straightened and cut during operation, the machine must be stopped to adjust the straightening mechanism before the pipe straightening and cutting operation can continue, thus delaying the operation. Summary of the Invention

[0005] The purpose of this invention is to provide a pipe straightening and cutting device and control method for a chemical liquid supply system. It can automatically detect whether the pipe is bent and automatically adjust the position and height of the corresponding second straightening pressure roller according to the detection result. While ensuring continuous straightening and cutting operation, it improves the straightness of the pipe. During the adjustment process, it detects the straightening force to control the adjustment accuracy and prevents the pipe from being over-straightened and deformed.

[0006] To achieve the above objectives, according to a first aspect of the present invention, a pipe straightening and cutting device for a chemical liquid supply system is provided, comprising:

[0007] A heating and straightening mechanism includes a heating component, a straightening component, and a straightening adjustment component for automatically adjusting the straightening component. The straightening component includes a plurality of fixedly arranged first straightening rollers and a plurality of adjustable second straightening rollers that can move in the radial direction. The plurality of second straightening rollers are staggered with the plurality of first straightening rollers to define straightening gaps of different sizes to straighten pipes of different diameters.

[0008] The pipe inspection mechanism is equipped with a scanning camera to detect whether the pipe is bent and to determine the bending position and degree of bending in order to judge whether the pipe is straightened and qualified.

[0009] The heating and straightening mechanism is configured to control the straightening adjustment component to automatically adjust the position and height of the corresponding second straightening roller in the radial direction according to the bending position and degree of bending of the tube detected by the scanning camera, so as to improve the straightness of the tube.

[0010] Optionally, the pipe straightening and cutting device for the chemical liquid supply system further includes a control system, the control system comprising:

[0011] A pressure sensor is installed at the second straightening roller to detect the straightening force exerted by the second straightening roller in conjunction with the first straightening roller on the pipe material;

[0012] The control module, connected to the scanning camera, the straightening adjustment component, and the pressure sensor, generates a control adjustment signal based on the bending position and degree of bending parameters of the pipe detected by the scanning camera, which is then transmitted to the straightening adjustment component for adjustment. The control module also calculates the bending radius and degree of bending of the pipe to obtain a preset value for the straightening force parameter. When the straightening force parameter detected by the pressure sensor reaches the preset value, the control module stops adjusting the pipe.

[0013] Optionally, the preset value F of the straightening force parameter is obtained by the following formula:

[0014]

[0015] Wherein, E is the elastic modulus of the pipe, I is the moment of inertia of the pipe section, R is the bending radius of the pipe, k1 is the material coefficient of the pipe, k2 is the temperature coefficient, and δ is the curvature of the pipe.

[0016] Optionally, the straightening component further includes:

[0017] A support frame is used to support the first straightening roller and the second straightening roller, and is configured to be movable and adjustable in a horizontal direction perpendicular to the tube material to accommodate tube materials of different diameters;

[0018] A limit adjustment plate is disposed between the second straightening pressure roller and the support frame, and is used to drive the second straightening pressure roller to move and adjust in the radial direction;

[0019] An adjusting screw is provided at the limit adjustment plate, and an adjusting screw is provided on it.

[0020] Optionally, the alignment adjustment component includes:

[0021] A robotic arm is used to turn the adjusting screw to drive the adjusting screw rod and adjust the position and height of the limit adjustment plate;

[0022] The moving component moves in a controlled manner to move the robotic arm to the adjusting screw of the corresponding second straightening roller.

[0023] Optionally, the heating temperature range of the heating component of the heating and straightening mechanism is 370℃-390℃, the heating distance of the heating and straightening mechanism is 950-1050mm, and the running speed of the tube in the heating and straightening mechanism is 40mm-67mm / s.

[0024] Optionally, the scanning camera includes:

[0025] A first scanning camera is positioned above the tube to detect whether the tube is bent in the horizontal direction;

[0026] A second scanning camera is positioned on the side of the pipe to detect whether the pipe is bent in the radial direction.

[0027] Optionally, the pipe straightening and cutting device for the chemical liquid supply system further includes a cooling and cutting mechanism, the cooling and cutting mechanism comprising:

[0028] The cooling assembly includes a spray pipe for spraying and cooling the pipe material and a scraper for drying the pipe material.

[0029] The cutting assembly is equipped with a meter-counting wheel to control the cutting length of the tube.

[0030] According to a second aspect of the present invention, a control method for a pipe straightening and cutting device for a chemical liquid supply system is provided, comprising the following steps:

[0031] The bending position and degree of bending of the tube detected by the scanning camera are obtained.

[0032] Based on the bending position and degree of bending parameters of the tube, a control adjustment signal is generated to control the straightening adjustment component to move to the corresponding second straightening pressure roller and adjust its position height in the radial direction.

[0033] Optionally, the control method for the pipe straightening and cutting device for a chemical liquid supply system is characterized by further comprising the following steps:

[0034] The system obtains the straightening force parameter detected by the pressure sensor of the control system, calculates the bending radius and bending degree of the pipe material based on the bending degree parameter of the pipe material, and obtains the preset value of the straightening force parameter. When the straightening force parameter detected by the pressure sensor reaches the preset value, the system controls the straightening adjustment component to stop adjusting.

[0035] The beneficial effects of this invention are as follows: A scanning camera detects whether the pipe is bent and determines the bending position and degree. Based on the detection results, the straightening adjustment component automatically adjusts the position and height of the corresponding second straightening roller to ensure the consistency of the overall straightening effect of the straightening mechanism on the pipe. This improves the straightness of the pipe while enabling continuous operation of the pipe straightening and cutting device. Simultaneously, during the adjustment process, the straightening force feedback detected by the pressure sensor promptly controls the straightening adjustment component to stop adjusting, improving adjustment accuracy and preventing over-straightening and deformation of the pipe.

[0036] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0037] Figure 1 This is a schematic structural diagram of a pipe straightening and cutting device for a chemical liquid supply system according to an embodiment of the present invention;

[0038] Figure 2 This is a first schematic structural diagram of a straightening assembly for a pipe straightening and cutting device for a chemical liquid supply system, according to an embodiment of the present invention.

[0039] Figure 3 This is a schematic structural diagram of a heating and straightening mechanism for a pipe straightening and cutting device for a chemical liquid supply system, according to an embodiment of the present invention.

[0040] Figure 4 This is a second schematic structural diagram of a straightening assembly for a pipe straightening and cutting device for a chemical liquid supply system, according to an embodiment of the present invention.

[0041] Figure 5 This is a first schematic structural diagram of a cooling cutting mechanism of a pipe straightening and cutting device for a chemical liquid supply system according to an embodiment of the present invention;

[0042] Figure 6This is a second schematic structural diagram of a cooling cutting mechanism of a pipe straightening and cutting device for a chemical liquid supply system, according to an embodiment of the present invention.

[0043] Figure 7 This is a schematic structural diagram of a pipe inspection mechanism for a pipe straightening and cutting device for a chemical liquid supply system, according to an embodiment of the present invention.

[0044] Figure 8 This is a schematic flowchart illustrating a control method for a pipe straightening and cutting device for a chemical liquid supply system according to an embodiment of the present invention.

[0045] In the diagram: 1-Heating and straightening mechanism, 11-Heating component, 12-Straightening component, 121-First straightening roller, 122-Second straightening roller, 123-Support frame, 1231-Support plate, 1232-Adjusting rod, 1233-Adjusting groove, 1234-Fixing plate, 124-Limit adjustment plate, 125-Adjusting screw, 1251-Limit block, 126-Adjusting screw, 13-Straightening adjustment component, 131-Moving component, 132-Mechanical 1-Hand, 2-Pipe material inspection mechanism, 21-Scanning camera, 211-First scanning camera, 212-Second scanning camera, 22-Conveyor roller, 3-Cooling and cutting mechanism, 31-Cooling assembly, 311-Auxiliary straightening assembly, 3111-Transverse limiting roller, 3112-Vertical limiting roller, 312-Spray pipe, 313-Circulating pump, 314-Scraper, 32-Cutting assembly, 321-Drive roller, 322-Meter counting wheel, 323-Cutter. Detailed Implementation

[0046] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] Please see Figure 1 A preferred embodiment of this application discloses a pipe straightening and cutting device for a chemical liquid supply system, comprising a heating and straightening mechanism 1 and a pipe detection mechanism 2. The heating and straightening mechanism 1 includes a heating component 11, a straightening component 12, and a straightening adjustment component 13 for automatically adjusting the straightening component. The straightening component 12 includes a plurality of fixedly arranged first straightening rollers 121 and a plurality of radially movable and adjustable second straightening rollers 122. The plurality of second straightening rollers 122 are staggered with the plurality of first straightening rollers 121 to define straightening gaps of different sizes for straightening pipes of different diameters. The pipe detection mechanism 2 is equipped with a scanning camera 21 for detecting whether the pipe is bent and determining the bending position and degree of bending to determine whether the pipe is straightened to be qualified. The heating and straightening mechanism 1 is configured to control the straightening adjustment component 13 to automatically adjust the position and height of the corresponding second straightening roller 122 in the radial direction according to the bending position and degree of bending of the pipe detected by the scanning camera 21, thereby improving the straightness of the pipe.

[0051] According to the embodiment of the present invention, the scanning camera 21 detects whether the pipe is bent and determines the bending position and degree of bending. If the pipe bends at a certain position, it indicates that there is a straightening problem at the corresponding position of the straightening mechanism, resulting in a different straightening effect at that position compared to other positions. Therefore, based on the bending position and degree of bending of the pipe, the straightening adjustment component 13 is controlled to move to the corresponding second straightening pressure roller 122 and its position height is adjusted accordingly to ensure the consistency of the overall straightening effect of the straightening mechanism on the pipe. This improves the straightness of the pipe while enabling continuous operation of the pipe straightening and cutting device.

[0052] The following detailed description uses specific examples:

[0053] The pipe straightening and cutting device also includes a control system, which comprises a pressure sensor and a control module. The pressure sensor is located at the second straightening roller 122 and is used to detect the straightening force exerted on the pipe by the second straightening roller 122 in conjunction with the first straightening roller 121. The control module is connected to the scanning camera 21, the straightening adjustment assembly 13, and the pressure sensor. It generates a control adjustment signal based on the bending position and degree of bending parameters of the pipe detected by the scanning camera 21, which is then transmitted to the straightening adjustment assembly 13 for adjustment. The module also calculates the bending radius and degree of bending of the pipe to obtain a preset value for the straightening force parameter. When the straightening force parameter detected by the pressure sensor reaches the preset value, the straightening adjustment assembly 13 stops adjusting.

[0054] The preset value F of the straightening force parameter is obtained by the following formula:

[0055]

[0056] Where E is the elastic modulus of the pipe, I is the moment of inertia of the pipe section, R is the bending radius of the pipe, k1 is the material coefficient of the pipe, k2 is the temperature coefficient, and δ is the curvature of the pipe.

[0057] The control module receives the bending parameters detected by the scanning camera 21, calculates the bending radius and curvature of the pipe based on these parameters, and calculates the preset value of the straightening force parameter according to the above formula. In the above formula, the elastic modulus, moment of inertia, and material coefficient of the pipe are preset fixed values, while the temperature coefficient changes accordingly with the heating temperature. A pressure sensor is installed at the contact point between the second straightening roller 122 and the pipe. When the position and height of the second straightening roller 122 are adjusted, the straightening force parameter detected by the pressure sensor also changes accordingly. The pressure sensor transmits the straightening force parameter to the control module. When the straightening force parameter reaches the preset value, it indicates that the adjustment of the position and height of the second straightening roller 122 has met the straightening requirements. Continued adjustment will cause the pipe to be over-straightened and deformed. Therefore, the control module sends a stop adjustment signal to the straightening adjustment component 13 to control the straightening adjustment component 13 to stop adjustment.

[0058] To ensure uniform heating and straightening of the pipe material, the heating and straightening mechanism 1 is sealed inside a heating chamber. The heating assembly 11 comprises multiple infrared heaters evenly distributed within the chamber. Simultaneously, multiple temperature sensors are evenly positioned within the chamber. When temperature differences are detected by the sensors, the heating power of the corresponding infrared heaters is adjusted to ensure a uniform overall temperature within the chamber, minimizing the impact of uneven heating on pipe straightening. The temperature sensors are connected to a control module, which adjusts the temperature coefficient of the preset straightening force parameter based on the detected temperatures.

[0059] The heating element 11 has a heating temperature range of 370℃-390℃, the heating distance of the heating and straightening mechanism 1 is 950-1050mm, and the running speed of the pipe in the heating and straightening mechanism 1 is 40mm-67mm / s. This heating temperature range and heating distance are designed to ensure the pipe is softened and straightened, preventing overheating or insufficient heating that would prevent straightening. When the temperature sensor detects that the heating chamber temperature has reached the upper limit, the heating element 11 stops heating; when the temperature sensor detects that the heating chamber temperature is below the lower limit, the heating element 11 starts heating, thus ensuring that the temperature inside the heating chamber remains within the set range. The running speed of the pipe in the heating and straightening mechanism 1 is adjusted according to the pipe diameter. Larger diameter pipes require longer heating times and therefore run slower, while smaller diameter pipes require shorter heating times and therefore run faster.

[0060] Please see Figure 2 The straightening assembly 12 has different sized straightening gaps formed by the cooperation of the first straightening roller 121 and the second straightening roller 122, which correspond to pipes of different diameters. The size of the multiple straightening gaps gradually decreases from one end to the other along the direction of the second straightening roller 122.

[0061] Please see Figure 2 , Figure 3 and Figure 4 The straightening assembly 12 also includes a support frame 123, a limiting adjustment plate 124, an adjusting screw 125, and an adjusting screw 126. The support frame 123 includes two support plates 1231 and an adjusting rod 1232. Multiple first straightening rollers 121 and multiple second straightening rollers 122 are parallel and staggered between the two support plates 1231. The adjusting rod 1232 is horizontally positioned and perpendicular to the pipe material. The two support plates 1231 are sleeved on the adjusting rod 1232 and can be moved and adjusted along the axial direction of the adjusting rod 1232. The limiting adjustment plate 124 is located between the second straightening rollers 122 and the support plates 1231. Specifically, the limiting adjustment plate 124 is located at both ends of the second straightening rollers 122. The support plates 1231 have adjusting grooves 1233, and the limiting adjustment plate 124 is limited and locked within the corresponding adjusting grooves 1233 and can be moved and adjusted radially. One end of the adjusting screw 125 is rotatably limited within the limiting adjusting plate 124 by a limiting block 1251, and the other end extends upward through the heating box. An adjusting screw 126 is provided at the other end of the adjusting screw 125. A fixing plate 1234 is also provided on the support plate 1231. The fixing plate 1234 is sleeved on the adjusting screw 125 to increase the stability of the adjusting screw 125.

[0062] Before use, the heating and straightening mechanism 1 first adjusts the position of the support plate 1231 manually or electrically according to the pipe diameter of the pipe to be straightened, so that the straightening gap formed by the first straightening pressure roller 121 and the second straightening pressure roller 122 corresponding to the pipe diameter moves to the designated position, and then the pipe is passed through the straightening gap to complete the installation.

[0063] Please see Figure 3 The straightening adjustment assembly 13 includes a moving assembly 131 and a robotic arm 132. The robotic arm 132 is used to turn the adjusting screw 126 to drive the adjusting screw 125 to adjust the position and height of the limit adjustment plate 124. The moving assembly 131 can be moved in a controlled manner along any position of the X, Y, and Z axes to drive the robotic arm 132 to the adjusting screw 125 of the corresponding second straightening pressure roller 122.

[0064] After the straightening adjustment component 13 receives the control adjustment signal from the control module, it first moves the robot arm 132 to the corresponding adjusting screw 125 of the second straightening pressure roller 122 via the moving component 131. Then, the robot arm 132 is activated to turn the adjusting screw 126 on the adjusting screw 125, causing the adjusting screw 125 to move radially. During the turning process, the moving component 131 cooperates to slowly move the robot arm 132 radially. The radial movement of the adjusting screw 125 pushes the limit adjustment plate 124 and the second straightening pressure roller 122 to move synchronously to adjust the height. Since the adjusting screw 125 and the limit adjustment plate 124 are connected by a limit block, the rotation of the adjusting screw 125 caused by the turning of the robot arm 132 is not hindered by the limit adjustment plate 124, making the entire adjustment process run smoothly and ensuring that the position of the adjusting screw 125 on the limit adjustment plate 124 is fixed after adjustment. Since the limit adjustment plate 124 is set at both ends of the second straightening pressure roller 122, each second straightening pressure roller 122 has two adjustment screws 125. Therefore, during adjustment, the two adjustment screws 125 of the same second straightening pressure roller 122 need to be adjusted in the same position. This ensures the accuracy of the position adjustment of the second straightening pressure roller 122 and also keeps the second straightening pressure roller 122 horizontally, so as not to affect the straightening of the pipe.

[0065] Please see Figure 5 and Figure 6Since the pipe material softens to some extent after heating and straightening, direct cutting can easily cause the cut edge to deform under pressure. Therefore, the pipe straightening and cutting device also includes a cooling cutting mechanism 3 located between the heating and straightening mechanism 1 and the pipe material detection mechanism 2. The cooling cutting mechanism 3 includes a cooling component 31 and a cutting component 32. The cooling component 31 is located inside a cooling tank and includes an auxiliary straightening component 311, a spray pipe 312, a circulating pump 313, and a scraper 314. There are multiple sets of auxiliary straightening components 311, arranged parallel to each other along the axial direction of the pipe material. The spray pipe 312 is located above the auxiliary straightening component 311 and has multiple spray holes for spraying and cooling the pipe material after heating and straightening. The circulating pump 313 is connected to the spray pipe 312 and is used to circulate the cooling water collected from the cooling tank. The scraper 314 is located on the side of the cooling box and corresponds to the position of the pipe port. It is equipped with a scraper to remove and dry the water droplets remaining on the cooled pipe, preventing water droplets from remaining on the pipe surface for a long time and causing corrosion.

[0066] Since the pipe material may deform due to thermal expansion and contraction during the spray cooling process, the auxiliary straightening assembly 311 is designed to maintain the straightness of the pipe material after heating and straightening. Each set of auxiliary straightening assemblies 311 includes a set of laterally adjustable lateral limiting rollers 3111 and a set of longitudinally adjustable longitudinal limiting rollers 3112. The set of lateral limiting rollers 3111 includes two lateral limiting rollers 3111, and the relative position between the two lateral limiting rollers 3111 is adjustable. The set of longitudinal limiting rollers 3112 includes two longitudinal limiting rollers 3112, and the relative position between the two longitudinal limiting rollers 3112 is adjustable. Before using the cooling and heating device, the straightening gap size formed by the cooperation of the longitudinal limiting rollers 3112 and the lateral limiting rollers 3111 is adjusted according to the pipe diameter, and the straightening gaps of multiple sets of auxiliary straightening assemblies 311 are aligned on the same horizontal line and correspond to the scraper 314.

[0067] Please see Figure 5 and Figure 6 The cutting assembly 32 is located after the cooling assembly 31 and includes a drive roller 321, a measuring roller 322, and a cutter 323. There are two drive rollers 321, and the gap between them is adjustable to accommodate pipes of different diameters. There are also two measuring rollers 322, with an adjustable gap between them, and they are arranged parallel to and corresponding to the two drive rollers 321. The measuring roller 322 controls the cutting length of the pipe; when the measuring roller 322 detects that the pipe has reached a certain length, the cutter 323 descends to cut the pipe.

[0068] Please see Figure 7The pipe inspection mechanism 2 also includes a conveyor roller 22 for conveying the cut pipe. The scanning camera 21 includes a first scanning camera 211 and a second scanning camera 212. The first scanning camera 211 is disposed above the pipe and is used to detect whether the pipe is bent in the horizontal direction. The second scanning camera 212 is disposed on the side of the pipe and is used to detect whether the pipe is bent in the radial direction.

[0069] By using the first scanning camera 211 in conjunction with the second scanning camera 212, the pipe material is inspected from all angles to determine whether it is bent. The inspection information obtained is more accurate. The inspection information is fed back to the control module, which in turn controls the adjustment of the straightening component 12 more precisely.

[0070] Please see Figure 8 The present invention also provides a control method for a pipe straightening and cutting device for a chemical liquid supply system, comprising the following steps:

[0071] S10: Obtain the bending position and degree of bending parameters of the tube detected by the scanning camera 21;

[0072] S20: Generate a control adjustment signal based on the bending position and degree of bending parameters of the pipe material, and control the straightening adjustment component 13 to move to the corresponding second straightening pressure roller 122 and adjust its position height in the radial direction.

[0073] S30: Obtain the straightening force parameter detected by the pressure sensor of the control system, calculate the bending radius and bending degree of the pipe material according to the bending degree parameter of the pipe material, and obtain the preset value of the straightening force parameter. When the straightening force parameter detected by the pressure sensor reaches the preset value, control the straightening adjustment component 13 to stop adjusting.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A pipe straightening and cutting device for a chemical liquid supply system, characterized in that, include: A heating and straightening mechanism includes a heating component, a straightening component, and a straightening adjustment component for automatically adjusting the straightening component. The straightening component includes a plurality of fixedly arranged first straightening rollers and a plurality of adjustable second straightening rollers that can move radially. The plurality of second straightening rollers are staggered with the plurality of first straightening rollers to define straightening gaps of different sizes for straightening pipes of different diameters. The straightening component also includes a support frame, a limiting adjustment plate, and an adjusting screw. The support frame is used to support the first and second straightening rollers and is configured to be perpendicular to the pipe. The straightening adjustment assembly is adjustable in the horizontal direction to accommodate pipes of different diameters. The limiting adjustment plate is located between the second straightening roller and the support frame to drive the second straightening roller to move and adjust in the radial direction. The adjusting screw is located at the limiting adjustment plate and has an adjusting screw on it. The straightening adjustment assembly includes a robot and a moving assembly. The robot is used to turn the adjusting screw to drive the adjusting screw to adjust the position and height of the limiting adjustment plate. The moving assembly moves in a controlled manner to drive the robot to move to the corresponding adjusting screw of the second straightening roller. The pipe inspection mechanism is equipped with a scanning camera to detect whether the pipe is bent and to determine the bending position and degree of bending in order to judge whether the pipe is straightened and qualified. The heating and straightening mechanism is configured to control the straightening adjustment component to automatically adjust the position and height of the corresponding second straightening pressure roller in the radial direction according to the bending position and degree of bending of the tube detected by the scanning camera, so as to improve the straightness of the tube. The control system includes a pressure sensor and a control module. The pressure sensor is located at the second straightening roller and is used to detect the straightening force exerted by the second straightening roller in conjunction with the first straightening roller on the pipe. The control module is connected to the scanning camera, the straightening adjustment component, and the pressure sensor. It generates a control adjustment signal based on the bending position and degree of bending parameters of the pipe detected by the scanning camera and transmits it to the straightening adjustment component for adjustment. It also calculates the bending radius and degree of bending of the pipe to obtain a preset value of the straightening force parameter. When the straightening force parameter detected by the pressure sensor reaches the preset value, it controls the straightening adjustment component to stop adjusting.

2. The pipe straightening and cutting device for a chemical liquid supply system according to claim 1, characterized in that, The preset value F of the straightening force parameter is obtained by the following formula: Where E is the elastic modulus of the pipe, I is the moment of inertia of the pipe cross-section, and R is the bending radius of the pipe. The material coefficient of the pipe material is... For temperature coefficient, The curvature of the pipe material.

3. The pipe straightening and cutting device for a chemical liquid supply system according to claim 1, characterized in that, The heating temperature range of the heating component of the heating and straightening mechanism is 370℃-390℃, the heating distance of the heating and straightening mechanism is 950-1050mm, and the running speed of the pipe in the heating and straightening mechanism is 40mm-67mm / s.

4. The pipe straightening and cutting device for a chemical liquid supply system according to claim 1, characterized in that, The scanning camera includes: A first scanning camera is positioned above the tube to detect whether the tube is bent in the horizontal direction; A second scanning camera is positioned on the side of the pipe to detect whether the pipe is bent in the radial direction.

5. The pipe straightening and cutting device for a chemical liquid supply system according to claim 1, characterized in that, It also includes a cooling cut-off mechanism, which comprises: The cooling assembly includes a spray pipe for spraying and cooling the pipe material and a scraper for drying the pipe material. The cutting assembly is equipped with a meter-counting wheel to control the cutting length of the tube.

6. A control method for a pipe straightening and cutting device for a chemical liquid supply system as described in any one of claims 1-5, characterized in that, Includes the following steps: The bending position and degree of bending of the tube detected by the scanning camera are obtained. Based on the bending position and degree of bending parameters of the tube, a control adjustment signal is generated to control the straightening adjustment component to move to the corresponding second straightening pressure roller and adjust its position height in the radial direction.

7. The control method for the pipe straightening and cutting device for a chemical liquid supply system according to claim 6, characterized in that, It also includes the following steps: The system obtains the straightening force parameter detected by the pressure sensor of the control system, calculates the bending radius and bending degree of the pipe material based on the bending degree parameter of the pipe material, and obtains the preset value of the straightening force parameter. When the straightening force parameter detected by the pressure sensor reaches the preset value, the system controls the straightening adjustment component to stop adjusting.

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